Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES Convention Papers Forum

Performance of MPEG Unified Speech and Audio Coding

The MPEG Unified Speech and Audio Coding (USAC) standard completed technical development in July, 2011 and is expected to issue as international standard ISO/IEC 23003-3, Unified Speech and Audio Coding in late 2011. Verification tests were conducted to assess the subjective quality of this new specification. Test material consisted of 24 items of mixed speech and music content and performance was assessed via subjective listening tests at coding rates ranging from 8 kbps (kilobits per second) for mono material to 96 kbps for stereo material. The mean performance of USAC was found to be better than that of MPEG High Efficiency AAC V2 (HE-AACv2) and Adaptive Multi-Rate Wide Band Plus (AMR-WB+) at all tested operating points. For most bit rates tested this performance advantage is large. Furthermore, USAC provides a much more consistent quality across all signal content types than the other systems tested. This paper summarizes the results of the verification tests.

Authors:
Affiliations:
AES Convention: Paper Number:
Publication Date:
Subject:

Click to purchase paper or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society